2116689220 has 24 divisors (see below), whose sum is σ = 4477032000. Its totient is φ = 840583392.

The previous prime is 2116689217. The next prime is 2116689257. The reversal of 2116689220 is 229866112.

It is a self number, because there is not a number n which added to its sum of digits gives 2116689220.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 377920 + ... + 383479.

It is an arithmetic number, because the mean of its divisors is an integer number (186543000).

Almost surely, 2^2116689220 is an apocalyptic number.

2116689220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2116689220 is an abundant number, since it is smaller than the sum of its proper divisors (2360342780).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2116689220 is a wasteful number, since it uses less digits than its factorization.

2116689220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 761547 (or 761545 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 37.

The square root of 2116689220 is about 46007.4909118070. The cubic root of 2116689220 is about 1283.9625777210.

The spelling of 2116689220 in words is "two billion, one hundred sixteen million, six hundred eighty-nine thousand, two hundred twenty".